Ganguly was one of the best captains India had. I wont call him the best but one of the best is a tag honourable enough. He was a limited test batsman in the sense that he was not a great like a Tendulkar but is one of the best one day players of all time.
He was treated poorly by the selectors in the end when he was dropped from the ODI squad despite having a successful run previous to his dropping. This is the best way to go keeping pride intact, against the best team in the world, given that his selection is not a guarantee in the squad.